code: def testReconstructSimpleGraph(self):
      with session.Session() as sess:
          u = variables.Variable([12.0], name="u")
          v = variables.Variable([30.0], name="v")
          w = math_ops.add(u, v, name="w")
          self.evaluate(u.initializer)
          self.evaluate(v.initializer)
  
          self._compareOriginalAndReconstructedGraphDefs(
              sess, w, expected_output=[42.0]
          )
  
imports: import tempfile
  from tensorflow.core.framework import graph_pb2
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.core.protobuf import rewriter_config_pb2
  from tensorflow.python.client import session
  from tensorflow.python.debug.lib import debug_data
  from tensorflow.python.debug.lib import debug_graphs
  from tensorflow.python.debug.lib import debug_utils
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.lib.io import file_io
  from tensorflow.python.ops import cond
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.ops import while_loop
  from tensorflow.python.platform import test
  from tensorflow.python.training import gradient_descent
label_desc: Use image node_id 6 for calling the ReconstructNonDebugGraphTest obj's underlying member method code with example usage: obj.testReconstructSimpleGraph() without return types